Robert Frieszell is charged with 30 counts of possession of child pornography.

Officials said they were originally called to Umatilla High School about allegations of Frieszell having a sexual relationship with a student.

A search of Frieszell's phone found that he had nude pictures of a 17-year-old engaged in sexual conduct and that he had sent a test message to another teen offering to distribute child pornography, according to a report.

Investigators said they seized Frieszell's computer and found 30 images of child pornography on the laptop.

Frieszell was a band volunteer with Umatilla High School and was a reserve Fruitland Park police officer. He is being held with bail set at $150,000.